Category: Physics

Can we smash on serve in badminton? Yes it is legal but only if the receiver moves AFTER the server delivers the service. This means that the receiver is only allowed to move forward after the server’s racket makes contact with the shuttlecock. Otherwise, it will be a fault on the receiver. What is always […]

How do you show distortion in art? Reflections and mirror images are commonly used to create reversal. DISTORTION involves stretching, lengthening, shortening, squeezing, melting and twisting an object from its original appearance to a new, strange, surreal appearance. What artists use distortion? The list of artists who notably distorted the figure is too long to […]

What are 4 examples of chemical properties? Examples of chemical properties include flammability, toxicity, acidity, reactivity (many types), and heat of combustion. Iron, for example, combines with oxygen in the presence of water to form rust; chromium does not oxidize (Figure 2). Is color change a chemical property? Color. The changing of color of a […]

Which is the best example of a scientific discovery? Among the statements that were given, the best example of a scientific discovery resulting from a new technology is “the discovery of the structure of DNA, which occurred as the result of an X-ray image of a DNA molecule”. How is science and technology important to […]

What kind of image is seen in a concave mirror? Concave mirrors can produce both real and virtual images; they can be upright (if virtual) or inverted (if real); they can be behind the mirror (if virtual) or in front of the mirror (if real); they can also be enlarged, reduced, or the same size […]

What makes it look like stars are moving? There are actually two different reasons why stars appear to move across our sky. The first is because the Earth is spinning and second because the Earth itself is moving around the Sun. At the same time as the Earth is moving around the sun it is […]

How do I know if my room is good acoustics? Walk around the room while listening to the song, and notice how the volume and frequencies differ in various places in the room. This may be subtle or it may be quite noticeable. This will give you a general impression of the acoustics of the […]

What are three types of sedimentary rock? There are three different types of sedimentary rocks: clastic, organic (biological), and chemical. Clastic sedimentary rocks, like sandstone, form from clasts, or pieces of other rock. Are sedimentary rocks soft or hard? Sedimentary rocks are economically important in that they can easily be used as construction material because […]

Why is skim milk bad for you? Skim can leave you feeling unsatisfied, which leads many people to fill up on less-healthy “non-fat” foods. This is because saturated fats like those found in whole milk trigger the release of the hormone cholecystokinin, which makes you feel full. 5. Skim milk has been linked with “transient” […]

When a charged particle enters a uniform magnetic field what is its speed? As it enters the uniform magnetic field within the solenoid, its speed is 800 m/s and its velocity vector makes an angle of 30° with the central axis of the solenoid. What is the change in kinetic energy of the particle entering […]